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- Big Bore Kit
- Big-bore bolt-on kit increases 114"/117" with 4-1/2" stroke M-Eight to 128" with no case machining required
- 4-1/4" bore cylinders with 11:1 forged pistons
- Oil Pump/Cam Plate
- S&S oil pump/cam plate with blue anodized finish
- Passage plugs are removable for servicing
- Independent scavenge sections for flywheel cavity and cam chest
- Debris screen in both scavenge pickups
- Magnet in cam chest to help prevent debris from entering the oil pump
- Increased oil flow capacity on both the oil feed and scavenge side
- Adjustable pressure relief valve can be adjusted with the unit installed in the engine
- Pushrods
- Quikee pushrods with chrome pushrod tubes
- Tappets
- S&S premium tappets
- Tappet Cuffs
- S&S hard-anodized, black coated tappet cuffs are billet aluminum construction
- Improve tappet stability in high-lift, high-rpm situations
- Cam
- S&S 550 cams designed for big bore applications
- Valve Springs
- S&S valve springs work with cams up to .605" lift
- High-performance conical single-wire spring design
- All necessary gaskets, bearings and hardware for bolt-on installation is included
- Made in the U.S.A.
- Not recommended for Tri-Glide or other three wheel models including conversion due to lugging nature of these bikes.
Note
Fits Harley-Davidson Milwaukee-Eight 114/117 (Air/Oil cooled)
